METHODS AND APPARATUS TO COLLECT MEDIA IDENTIFYING DATA

摘要

Methods and apparatus to collect media identifying data are disclosed. An example method includes collecting audio data through a sound hole. The sound hole has a chamfered opening. The sound hole has an effective length-to-width ratio which is equal to or less than about 1.25 and analyzing the audio data to obtain media identifying data.

主权项

1. A method, comprising:
collecting audio data through a sound hole, the sound hole comprising a chamfered opening, the sound hole having an effective length-to-width ratio which is equal to or less than about 1.25; and analyzing the audio data to obtain media identifying data.